var moves0 = new Array(52,36,10,18,51,35,11,27,36,28,2,29,50,42,12,20,59,41,3,10,58,44,1,11,53,37,6,12,62,45,29,22,61,52,12,29,44,53,15,31,54,46,5,12,60,62,127,61,18,26,42,34,27,34,41,34,4,6,71,5,61,58,10,17,35,26,12,26,53,26,11,26,34,25,26,41,25,17,8,17,57,42,41,56,58,56,5,3,62,53,29,35,45,35,3,35,53,44,0,3,56,59,35,59,42,59,13,21,28,21,14,21,48,40,6,13,55,39,13,12,59,42,3,2 );
var names0 = new Array();
var base0 = -1;
var pieces = "KQNBR ";

var moves1 = new Array(52,36,1,18,51,35,11,19,57,42,6,21,62,52,12,28,53,45,5,12,58,44,4,6,71,5,59,51,28,35,52,35,19,27,60,58,120,59,18,35,44,35,27,36,51,53,12,19,58,57,5,4,55,47,3,12,45,36,21,36,42,36,12,36,61,25,4,5,63,60,36,29,53,52,2,20,54,38,29,27,49,41,27,30,25,43,8,24,47,39,30,38,60,62,38,35,43,15,6,15,52,31,15,6,59,35,24,32,35,51,19,37,51,54,5,3,54,14,6,5,31,26,37,19,26,30,5,4,62,60,4,11,30,21,11,2,60,20,13,20,21,3,2,3,14,6,3,12,6,0,32,41,50,41,12,13,57,50,13,21,50,43,21,29,0,6,20,28,39,31,28,36,43,52 );
var names1 = new Array();
var base1 = -1;
var pieces = "KQNBR ";

var moves2 = new Array(52,36,12,20,59,52,6,12,54,46,11,27,51,43,9,17,61,54,2,9,62,45,10,26,60,62,127,61,1,18,36,28,3,10,61,60,4,2,64,3,57,40,8,16,50,42,15,31,55,39,12,29,40,50,2,1,56,57,1,8,58,37,5,12,49,33,27,35,33,26,17,26,42,34,3,1,50,56,14,22,56,41,9,0,37,30,18,33,48,40,33,18,30,12,10,12,45,30,1,17,41,51,7,1,57,17,1,17,52,59,18,28,60,28,13,21,28,20,17,20,30,20,12,20,54,0,8,0,59,45,0,8,45,36,20,19,36,4,29,46,4,22,46,52,62,61,52,37,22,14,8,17,51,36,19,18,14,46,37,20,36,21,17,24,46,28,24,32,21,27,32,40,53,37,16,24,37,29,20,3,28,12,18,2,61,60,24,32,60,59,40,41,12,4,2,1,4,52,41,40,52,50,1,46,50,58,40,48,58,51,48,40,59,50,46,1,50,58,3,13,29,21,13,28,21,13,28,13,27,10,13,19,10,25,19,25,51,49 );
var names2 = new Array();
var base2 = -1;
var pieces = "KQNBR ";

var moves3 = new Array(52,36,12,20,59,52,20,28,62,45,1,18,54,46,5,26,61,54,6,21,60,62,127,61,11,19,50,42,2,20,61,59,26,17,51,35,20,38,35,27,18,12,55,47,38,11,48,32,8,16,32,24,17,8,58,44,8,44,52,44,4,6,71,5,57,51,12,22,45,60,21,4,46,38,22,37,60,43,37,43,44,43,14,22,59,61,13,29,38,29,22,29,53,37,4,14,43,46,3,12,56,60,0,4,36,29,11,29,37,28,19,28,62,55,6,7,51,36,14,31,46,30,31,37,30,12,4,12,36,46,29,22,54,36,7,14,42,34,37,43,36,43,22,43,61,5,14,5,34,26,28,36,60,44,5,4,27,19,10,19,46,29,12,28,29,19,4,11,49,33,11,18,55,46,18,27,46,37,27,35,19,9,28,20,44,60,36,44,9,19,44,52,19,29,35,42,29,39,20,36,37,46,36,39,46,39,42,51,60,52,43,52,26,18,52,25,18,10,25,11,33,25,11,2,25,16,51,42,39,31,42,33,31,23 );
var names3 = new Array();
var base3 = -1;
var pieces = "KQNBR ";

var moves4 = new Array(52,36,10,18,57,42,11,27,59,45,27,36,42,36,1,11,55,47,6,21,36,21,11,21,61,34,12,20,62,52,3,10,51,35,5,12,58,37,10,17,60,58,120,59,2,11,54,38,21,27,37,51,4,2,64,3,34,41,11,4,50,34,27,33,45,42,18,26,51,44,4,18,63,60,18,36,52,46,36,22,38,30,26,35,44,35,12,30,60,44,17,24,48,40,33,18,35,14,24,42,14,42,30,44,53,44,3,59,41,59,7,3,47,39,22,43,49,41,3,6,46,31,20,28,31,21,6,54,42,51,54,62,21,27,43,52,27,42,52,59,42,59,62,63,58,50,63,39,41,33,39,34,50,43,34,39,51,42 );
var names4 = new Array();
var base4 = -1;
var pieces = "KQNBR ";
var nMoves = new Array(0,0,0,0,0);
var EmptyWhitePath = "../gif/w.gif";
var EmptyBlackPath = "../gif/b.gif";
// Copyright 98,99 by ChessBase GmbH, Germany
function Init( path )
{ gifs = new Array(6);
	for ( var i=0; i< 26; i++)
		gifs[i]= new Image();
	gifs[0].src = path + "b.gif";
	gifs[1].src = path + "bbb.gif";
	gifs[2].src = path + "bbw.gif";
	gifs[3].src = path + "bkb.gif";
	gifs[4].src = path + "bkw.gif";
	gifs[5].src = path + "bqb.gif";
	gifs[6].src = path + "bqw.gif";
	gifs[7].src = path + "brb.gif";
	gifs[8].src = path + "brw.gif";
	gifs[9].src = path + "bnb.gif";
	gifs[10].src = path + "bnw.gif";
	gifs[11].src = path + "wbb.gif";
	gifs[12].src = path + "wbw.gif";
	gifs[13].src = path + "wrb.gif";
	gifs[14].src = path + "wrw.gif";
	gifs[15].src = path + "wqb.gif";
	gifs[16].src = path + "wqw.gif";
	gifs[17].src = path + "wkb.gif";
	gifs[18].src = path + "wkw.gif";
	gifs[19].src = path + "wnb.gif";
	gifs[20].src = path + "wnw.gif";
	gifs[21].src = path + "wpb.gif";
	gifs[22].src = path + "wpw.gif";
	gifs[23].src = path + "bpb.gif";
	gifs[24].src = path + "wpb.gif";
	gifs[25].src = path + "b.gif";
}
function SyncPicture( base, basename )
{	if ( base > -1 ) return base;
	for ( i=0; i < document.images.length; i++ )
	{	if ( document.images[i].name != "" )
			if ( document.images[i].name == basename )
				return i;
			else if ( document.images[i].name.substring(0,3) == basename.substring(0,3) )
				i+= 63;
	}
	return -1;
}
function MoveForward5( moves, names, nm, base, basename )
{	base = SyncPicture( base, basename );
	for ( i=0; nMoves[nm] < moves.length / 2 && i < 10; i++ )
		MoveForward( moves, names, nm, base );
	return base;
}
function MoveBack5( moves, names, nm, base, basename )
{	base = SyncPicture( base, basename );
	for ( i=0; nMoves[nm] > 0 && i < 10; i++ )
		MoveBack( moves, names, nm, base );
	return base;
}
function GoStart( moves, names, nm, base, basename )
{	base = SyncPicture( base, basename );
	while ( nMoves[nm] > 0 )
		MoveBack( moves, names, nm, base );
	return base;
}
function GoEnd( moves, names, nm, base, basename )
{	base = SyncPicture( base, basename );
	while ( nMoves[nm] < moves.length / 2 )
		MoveForward( moves, names, nm, base );
	return base;
}
function MoveForward( moves, names, nm, base, basename )
{	base = SyncPicture( base, basename );
	if ( nMoves[nm] < moves.length / 2 )
	{	var n = nMoves[nm]*2;
		var from = moves[ n ] & 0x3f;
		var to = moves[ n+1 ] & 0x3f;
		names[ n   ] = document.images[ base + from ].src;
		names[ n+1 ] = document.images[ base + to ].src;
		var len = names[n].length;
		var nn = (Math.floor(( to / 8 )) + ( to % 8 ));
		var dest = ( nn % 2 ) == 1 ? "b" : "w";
		var piece = names[n].substring(len-6,len-5);
		if (( moves[ n ] & 0x380 ) == 0x80 )
			piece = "q";
		else if (( moves[ n ] & 0x380 ) == 0x100 )
			piece = "n";
		else if (( moves[ n ] & 0x380 ) == 0x180 )
			piece = "b";
		else if (( moves[ n ] & 0x380 ) == 0x200 )
			piece = "r";
		document.images[ base + to ].src = names[n].substring(0,len-6) + piece + dest + names[n].substring(len-4,len);
		nn = (Math.floor(( from / 8 )) + ( from % 8 ));
		if (( nn % 2 ) == 1 )
			document.images[ base + from ].src = EmptyBlackPath;
		else
			document.images[ base + from ].src = EmptyWhitePath;
		nMoves[nm]++;
		if ( nMoves[nm] < moves.length / 2 && ( moves[ nMoves[nm]*2 ] & 0x40 ) == 0x40 )
			MoveForward( moves, names, nm, base );
	}
	return base
}
function MoveBack( moves, names, nm, base, basename )
{	base = SyncPicture( base, basename );
	if ( nMoves[nm] > 0 )
	{	nMoves[nm]--;
		var from = moves[ nMoves[nm]*2 ] & 0x3f;
		var to = moves[ nMoves[nm]*2+1 ] & 0x3f;
		document.images[ base + from ].src = names[ nMoves[nm]*2 ];
		document.images[ base + to ].src = names[ nMoves[nm]*2+1 ];
		if (( moves[ nMoves[nm]*2 ] & 0x40 ) == 0x40 )
			MoveBack( moves, names, nm, base );
	}
	return base;
}
function GetMoveString( moves, names, nm, base, basename )
{	base = SyncPicture( base, basename );
	if ( nMoves[nm] > 0 && nMoves[nm] <= moves.length / 2 )
	{	var n = (nMoves[nm]-1)*2;
		var from = moves[ n ] & 0x3f;
		var to = moves[ n+1 ] & 0x3f;
		var len = document.images[ base + to ].src.length;
		var piece = document.images[ base + to ].src.substring(len-6,len-5);
		if ( piece == "q" )
			piece = pieces.substring(1,2);
		else if ( piece == "r" )
			piece = pieces.substring(4,5);
		else if ( piece == "b" )
			piece = pieces.substring(3,4);
		else if ( piece == "n" )
			piece = pieces.substring(2,3);
		else if ( piece == "k" )
			piece = pieces.substring(0,1);
		else piece = pieces.substring(5,6);
		var piece2 = "";
		if (( moves[ n ] & 0x380 ) == 0x80 )
			piece2 = pieces.substring(1,2);
		else if (( moves[ n ] & 0x380 ) == 0x100 )
			piece2 = pieces.substring(2,3);
		else if (( moves[ n ] & 0x380 ) == 0x180 )
			piece2 = pieces.substring(3,4);
		else if (( moves[ n ] & 0x380 ) == 0x200 )
			piece2 = pieces.substring(4,5);
		var lines = "abcdefgh";
		var rows = "87654321";
		var fromLine = from%8;
		var fromRow = Math.floor(from/8);
		var toLine = to%8;
		var toRow = Math.floor(to/8);
		var off=1;
		for ( i=0; i <= n; i += 2 )
			if (( moves[i] & 0x40 ) == 0x40 )
				off = off+1;
		var result = (Math.floor((nMoves[nm]-off)/2)+1).toString() + ". ";
		if ( document.images[ base + to ].src.substring(len-7,len-6) == "b" )
			result = result + "... ";
		if ( n >= 2 && (( moves[n] & 0x40 ) == 0x40 ))
		{	if (( moves[n-1] == 62 ) || ( moves[n-1] == 6 ))
				result = result + "0-0"
			else if (( moves[n-1] == 2 + 7 * 8 ) || ( moves[n-1] == 2 + 0 * 8 ))
				result = result + "0-0-0"
			else
			{	var sep = "x";
				from = moves[ n-2 ] & 0x3f;
				to = moves[ n-1 ] & 0x3f;
				fromLine = from%8;
				fromRow = Math.floor(from/8);
				toLine = to%8;
				toRow = Math.floor(to/8);
				result = result	+ lines.substring( fromLine, fromLine+1 ) + rows.substring( fromRow, fromRow+1 )
										+ sep
										+ lines.substring( toLine, toLine+1 ) + rows.substring( toRow, toRow+1 )
										+ piece2 + " ep";
			}
		}
		else
		{	var len = names[ n+1 ].length;
			var substr = names[ n+1 ].substring( len-6, len );
			var sep = (( substr == "/w.gif" ) || ( substr == "\\w.gif" ) ||
						  ( substr == "/b.gif" ) || ( substr == "\\b.gif" )) ? "-" : "x";
			if ( piece2 != "" ) piece = "";
			result = result + piece.toUpperCase() + lines.substring( fromLine, fromLine+1 ) + rows.substring( fromRow, fromRow+1 )
				+ sep
				+ lines.substring( toLine, toLine+1 ) + rows.substring( toRow, toRow+1 )
				+ piece2;
		}
		return result;
	}
	return "";
}